Series Number Id: GSGS 2742; Sheet number: 57c NE; Edition number: 2a, Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC09; envelope_number: 228, Manuscript on face: British line? & artillery positions in area west of Hindenburg Line & around Boursies, Louverval & Doignies; after German retirement to Hindenburg Line; stamp on reverse: Res. Bn. Cheshire Regt. Orderly Room.